Preheat your oven to 425°F (220°C).
Wash the russet potatoes thoroughly under cold water.
Pat the potatoes dry with a paper towel.
Poke several holes in each potato with a fork.
Rub each potato with olive oil to coat the skin.
Sprinkle sea salt generously over each potato.
Place the potatoes directly on the oven rack or on a baking sheet.
Bake for 45-60 minutes, until the skin is crispy and a fork easily pierces the flesh.
Remove the potatoes from the oven and let them cool for a few minutes.
Cut a slit in the top of each potato and fluff the insides with a fork before adding your desired toppings.